Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual data Montreal foi o visitante?
 ###Tabelas: CREATE TABLE best_100_chinese_motion_pictures (best_100_chinese_motion_pictures_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Title VARCHAR, Year INT, Region VARCHAR, Director(s) VARCHAR) CREATE TABLE houston_astros_vs._new_york_mets (houston_astros_vs._new_york_mets_id AUTO_INCREMENT PRIMARY KEY, Game INT, Date VARCHAR, Score VARCHAR, Location VARCHAR, Time VARCHAR, Attendance INT) CREATE TABLE composition_of_the_7th_seanad (composition_of_the_7th_seanad_id AUTO_INCREMENT PRIMARY KEY, Administrative Panel INT, Agricultural Panel INT, Cultural and Educational Panel INT, Industrial and Commercial Panel INT, Labour Panel INT, National University of Ireland INT, University of Dublin INT, Nominated by the Taoiseach INT, Total INT) CREATE TABLE municipal_detachments (municipal_detachments_id AUTO_INCREMENT PRIMARY KEY, Municipality VARCHAR, Population INT, Police officers INT, Residents per officer INT, Total costs (2005) VARCHAR, Cost per capita VARCHAR, Case burden INT, Crime rate per 1,000 people INT, Police force VARCHAR) CREATE TABLE regular_season (regular_season_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Visitor VARCHAR, Score VARCHAR, Home VARCHAR, Decision VARCHAR, Attendance INT, Record VARCHAR)  
SELECT Date FROM regular_season WHERE Visitor = montreal